The development or strengthening of cyclonic circulation in the atmosphere
This collage of GOES 13 satellite images shows the development of a nor'easter over two days.
Cyclogenesis is the development or strengthening of cyclonic circulation in the atmosphere (a low-pressure area).[1] Cyclogenesis is an umbrella term for at least three different processes, all of which result in the development of some sort of cyclone, and at any size from the microscale to the synoptic scale.
Tropical cyclones form due to latent heat driven by significant thunderstorm activity, developing a warm core.
Extratropical cyclones form as waves along weather fronts before occluding later in their life cycle as cold core cyclones.
Mesocyclones form as warm core cyclones over land, and can lead to tornado formation. Waterspouts can also form from mesocyclones, but more often develop from environments of high instability and low vertical wind shear.
The process in which an extratropical cyclone undergoes a rapid drop in atmospheric pressure (24 millibars or more) in a 24-hour period is referred to as explosive cyclogenesis, and is usually present during the formation of a nor'easter.[2] Similarly, a tropical cyclone can undergo rapid intensification.
The anticyclonic equivalent, the process of formation of high-pressure areas, is anticyclogenesis.[3] The opposite of cyclogenesis is cyclolysis.
^Arctic Climatology and Meteorology (2006). "Cyclogenesis". National Snow and Ice Data Center. Archived from the original on 2006-08-30. Retrieved 2006-12-04.
^Sanders, F.; J. R. Gyakum (1980-06-12). "Synoptic-dynamic climatology of the "Bomb"" (PDF). Massachusetts Institute of Technology, Cambridge. Archived from the original (PDF) on 2016-03-05. Retrieved 2012-01-21.
^"Cyclogenesis". Glossary of Meteorology. American Meteorological Society. 26 January 2012. Retrieved 2016-07-23.
Cyclogenesis is the development or strengthening of cyclonic circulation in the atmosphere (a low-pressure area). Cyclogenesis is an umbrella term for...
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropical cyclogenesis occurs...
classify something as explosive cyclogenesis is latitude dependent. For example, at 60° latitude, explosive cyclogenesis occurs if the central pressure...
the southern hemisphere. Cyclogenesis is the development or strengthening of cyclonic circulation in the atmosphere. Cyclogenesis is an umbrella term for...
cyclogenesis in all tropical cyclone basins. As the oscillation propagates from west to east, it leads to an eastward march in tropical cyclogenesis with...
historically describe the period in each year when most subtropical or tropical cyclogenesis occurs in the Atlantic Ocean (over 97%). The National Hurricane Center...
period in each year when most tropical cyclogenesis occurs in the basin. Even so, subtropical or tropical cyclogenesis is possible at any time of the year...
pattern. Minima in the wind pattern aloft are favorable for tropical cyclogenesis. Maxima in the wind pattern at various levels of the atmosphere show...
meteorology, an occluded front is a type of weather front formed during cyclogenesis. The classical and usual view of an occluded front is that it starts...
Tracking generally westward, environmental conditions favored tropical cyclogenesis and the system developed into a tropical depression on the following...
sufficient spin and convergence is one of the six requirements for tropical cyclogenesis. There appears to be a 15- to 25-day cycle in thunderstorm activity associated...
European windstorms are powerful extratropical cyclones which form as cyclonic windstorms associated with areas of low atmospheric pressure. They can occur...
in the Indian Ocean and Western Pacific in both hemispheres, tropical cyclogenesis is influenced less by tropical easterly waves and more by the seasonal...
The average sea surface temperature that helps lead to subtropical cyclogenesis is 24 °C (75 °F). If the thunderstorm activity becomes deep and persistent...
convention, historically describe the period in each year when most tropical cyclogenesis occurs in the Atlantic. However, the formation of subtropical or tropical...
Wash, Stacey H. Heikkinen, Chi-Sann Liou, and Wendell A. Nuss. A Rapid Cyclogenesis Event during GALE IOP 9. Retrieved on 28 June 2008. Brown, Dwayne; Cabbage...
development occurs in tandem with around half of all CAGs. Tropical cyclogenesis typically occurs on the northeastern periphery of the gyre, with the...
Businger, T. M. Graziano, M. L. Kaplan, and R. A. Rozumalski. Cold-air cyclogenesis along the Gulf-Stream front: investigation of diabatic impacts on cyclone...
Genoa. Genoa low cyclogenesis can occur at any time of year, though usually situated further south during the summer. Cyclogenesis is shifted to the...
doldrums because of the calm, stagnant, or inactive winds. Tropical cyclogenesis depends upon low-level vorticity as one of its six requirements, and...
may affect thousands of Indians living in coastal regions. Tropical cyclogenesis is particularly common in the northern reaches of the Indian Ocean in...
2008 March 6–10, 2008 2009 Midwest Blizzard 6–8 December 2009, a bomb cyclogenesis event that also affected parts of Canada North American blizzard of 2009...
or Texas hooker) is a relatively infrequent winter storm system whose cyclogenesis occurs in the South to southwestern United States from the late fall...
only month of the year after the hurricane season, has featured the cyclogenesis of fourteen tropical cyclones. The second Hurricane Alice in 1954 was...
historically describe the period in each year when most subtropical or tropical cyclogenesis occurs in these regions of the Pacific Ocean, however development of...
is important. While sea surface temperature is important for tropical cyclogenesis, it is also important in determining the formation of sea fog and sea...
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